Fast tracking the conversion of dual fuel engines in existing offshore vessels to ammonia operation

The Apollo project will mature and demonstrate in operational environment, the disruptive installation of a dual fuel ammonia engine in an offshore supply vessel to ammonia operation reducing emissions by 70%.

The project is developed to closely answer the HORIZON-CL5-2022-D5-01-04 topic of transformation of the existing fleet towards greener operations through retrofitting (ZEWT Partnership).

The specific objectives include: 1) Successful large-scale demonstration of the use of dual-fuel ICE (ammonia-based) in an existing vessel; 2) Complete first classification under DNV “Gas fuelled, Ammonia”; 3) 70% reduction of CO2 emissions and NOx emissions below 2.4 g/kWh from vessel operations; 4) Complete retrofitting solution to operate on ammonia, through development of safe ammonia storage and operation, including both deck load or below deck tanks; 5) Demonstrate the retrofit in replicators in other two vessels with different use (dredging and offshore construction) and validate feasibility for scaling; 6) Support to the expansion of the ammonia bunkering network in the North Sea and beyond, obtain 100% green ammonia for the project’s needs; 7) Validated business case for ammonia as a ship fuel with operational expenditures